Title:
GAS HYDRATE FORMATION INHIBITOR AND METHOD FOR INHIBITING GAS HYDRATE FORMATION WITH THE SAME
Document Type and Number:
WIPO Patent Application WO/2002/010318
Kind Code:
A1
Abstract:
A gas hydrate formation inhibitor consisting of an amphiphilic polymer (such as N-isopropylmethacrylamide (co)polymer) which bears nonionic groups (such as hydroxyl groups) at the polymerization-initiation and -termination ends and has a weight-average molecular weight of 500 to 10,000; and a method for inhibiting gas hydrate formation by adding the gas hydrate formation inhibitor to a system wherein a gas hydrate is to be formed. According to this invention, the formation of gas hydrates can be inhibited, and gas hydrates can be stabilized from the viewpoints of theories of chemical equilibrium and rate process.
Inventors:
TOYAMA MASAYUKI (JP)
SEYA MASAAKI (JP)
SEYA MASAAKI (JP)
Application Number:
PCT/JP2001/006458
Publication Date:
February 07, 2002
Filing Date:
July 26, 2001
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
TOYAMA MASAYUKI (JP)
SEYA MASAAKI (JP)
TOYAMA MASAYUKI (JP)
SEYA MASAAKI (JP)
International Classes:
C08F120/56; C10L3/00; C10L3/06; (IPC1-7): C10L3/00; C07C7/20; C07C9/04; C08F20/56
Domestic Patent References:
| WO1998053007A1 | 1998-11-26 | |||
| WO1997007320A1 | 1997-02-27 | |||
| WO1996041834A1 | 1996-12-27 | |||
| WO1996041786A1 | 1996-12-27 |
Foreign References:
| JP2001234182A | 2001-08-28 | |||
| JP2001139966A | 2001-05-22 | |||
| JP2001164274A | 2001-06-19 | |||
| JP2000273475A | 2000-10-03 | |||
| JP2001187890A | 2001-07-10 | |||
| JPH10338715A | 1998-12-22 |
Attorney, Agent or Firm:
Ishida, Takashi (ISHIDA & ASSOCIATES Toranomon 37 Mori
Bldg. 5-1 Toranomon 3-chome Minato-ku, Tokyo, JP)
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